The great news about the MS Global IME is that it is a free
download.
You must download simplified, traditional, and Japanese IME separately; if
you don't already have the support packages for Asian languages, you can
download those as well. Unlike the other two IME programs, the MS Global
allows for phrase/sentence input. With UnionWay and NJStar one must enter
one word at a time. The downside to MS Global is that there is only one
input method: pinyin for simplified characters, zhuyin for
traditional, and romaji for Japanese although you can get the changjie
input method for Chinese traditional characters as well.